<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no">
    <title>trap</title>
  </head>
  <body>
    <div id="app"></div>
    <!-- built files will be auto injected -->
  </body>
  <script>
    //  (function(){
    //     change() 

    //     window.onresize = function(){
    //       change() 
    //     }

    //      window.orientationchange = function(){//orientationchange  屏幕旋转事件
    //       change() 
    //     }


    //     function change(){
    //       var winW = document.documentElement.clientWidth || document.body.clientWidth;
    //       document.documentElement.style.fontSize = winW *50 /750 +"px"
    //       console.log("1rem="+winW *50 /750 +"px")
    //     }
    //   })()
  </script>
</html>
